Dizzying video footage has captured the final construction stages of One World Trade Center, now the tallest building in the western hemisphere.

Standing tall at the site of the 9/11 terror attacks, the skyscraper towers over New York City at 1,776ft (541m), making it the third tallest building in the world.

There was warm applause as the 408ft steel spire was hoisted into place by a crane located high above street level last week.

Footage captures the final stages of the 1WTC construction (Picture: YouTube)

The stunning footage was captured on a camera attached to the spire and later released by the Port Authority New York & New Jersey.

‘As dozens of construction workers perched atop One World Trade Center looked on and applauded the historic milestone, crews installed the final two sections of the spire at One World Trade Center,’ the authority explained.

Workers attach the final section of the spire (Picture: AP)

‘Using a crane, ironworkers lifted the final two pieces off a temporary work platform on the roof of One WTC and attached them to the previously installed 16 sections of spire.

‘During the installation, ironworkers set and tightened 60 bolts at an altitude of 1,701ft in the air.’

Workers put the spire in place (Picture: YouTube)

The 104-storey skyscraper is the focal point of a new World Trade Center complex in Lower Manhattan and has cost an estimated $3.8 billion (£2.4bn) to build.